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Low-luminosity Type II supernovae โ€“ III. SN 2018hwm, a faint event with an unusually long plateau

Low-luminosity Type II supernovae โ€“ III. SN 2018hwm, a faint event with an unusually long plateau

In this work, we present photometric and spectroscopic data of the low-luminosity Type IIP supernova (SN) 2018hwm. The object shows a faint ($M_r=-15$ mag) and very long ($\sim$130 days) plateau, followed by a 2.7 mag drop in the $r$-band to the radioactive tail. The first spectrum shows a blue continuum โ€ฆ